Umm the link seems to be broken, but a quick search turned up the site where the actual chart from imgirl also seems to be broken. At least for me. But the question is why did this seem interesting to you?

Pots have to be replaced almost every year because the sun rots them, potting mix, pest control, nutrients and not to mention surveillance and intruder detection measures as well as original purchase of the clones from qualified licensed distributors. You know what you are growing this way. Along with all the labor, transportation and automatic irrigation involved. It's not the same as back in the day when you could just throw out some seeds and be happy.